EP2520820A1 - Disc brake, in particular for a commercial vehicle - Google Patents

Disc brake, in particular for a commercial vehicle Download PDF

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Publication number
EP2520820A1
EP2520820A1 EP12166738A EP12166738A EP2520820A1 EP 2520820 A1 EP2520820 A1 EP 2520820A1 EP 12166738 A EP12166738 A EP 12166738A EP 12166738 A EP12166738 A EP 12166738A EP 2520820 A1 EP2520820 A1 EP 2520820A1
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EP
European Patent Office
Prior art keywords
adjusting spindle
bellows
brake
disc brake
disc
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP12166738A
Other languages
German (de)
French (fr)
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EP2520820B1 (en
Inventor
Thomas Beck
Markus Gruber
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH
Original Assignee
Knorr Bremse Systeme fuer Nutzfahrzeuge GmbH
Knorr Bremse Systeme fuer Schienenfahrzeuge GmbH
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Publication of EP2520820A1 publication Critical patent/EP2520820A1/en
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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D65/00—Parts or details
    • F16D65/38—Slack adjusters
    • F16D65/40—Slack adjusters mechanical
    • F16D65/52—Slack adjusters mechanical self-acting in one direction for adjusting excessive play
    • F16D65/56—Slack adjusters mechanical self-acting in one direction for adjusting excessive play with screw-thread and nut
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
    • F16D55/02—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members
    • F16D55/22—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads
    • F16D55/224—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members
    • F16D55/225—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads
    • F16D55/226—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with axially-movable discs or pads pressed against axially-located rotating members by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads with a common actuating member for the braking members the braking members being brake pads in which the common actuating member is moved axially, e.g. floating caliper disc brakes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
    • F16D2125/00—Components of actuators
    • F16D2125/02—Fluid-pressure mechanisms
    • F16D2125/08—Seals, e.g. piston seals

Definitions

  • the invention relates to a disc brake, in particular for a commercial vehicle, according to the preamble of claim 1.
  • this receiving space is largely closed, specifically on the side associated with a brake caliper brake brake application means of a closure cover.
  • the adjusting spindles which can be pressed against the brake lining by actuation of the application device, are guided through the closure cover and in each case sealed by a bellows.
  • the adjusting spindles are designed as threaded pipes and rotatable for Lsymmetricspielausrete.
  • a pressure piece is connected to each adjusting spindle front side, against which the adjusting spindle is rotatable.
  • the invention has for its object to further develop a disc brake of the generic type so that their reliability improves, increases the life and the manufacturing or assembly costs are reduced.
  • the receiving space is sealed over the entire operating time of the disc brake, so that neither dirt nor moisture can penetrate into the receiving space, which would affect the functional parts therein.
  • an increase in the service life is achieved by the invention.
  • the improved functional or operational reliability ultimately leads to an optimization of operating costs, or at least to a reduction in operating costs.
  • resulting from the invention reduced manufacturing costs, since it can be dispensed with the embedding of a reinforcing ring in the contact area with the adjusting spindle.
  • the restoring forces inherent in the elastic material of which the bellows are made suffice to provide a tight seal To cause contact with the adjusting spindle.
  • these restoring forces are designed by an appropriate choice of material or dimensioning so that a relative rotation of the adjusting spindle to the bellows is possible without circumferential deformation of the bellows in the sense of a twist.
  • a further development of the invention provides that the bellows is held in a form-fitting manner on the adjusting spindle in the axial direction, for which, according to a further aspect of the invention, a shell-side circumferential annular groove is provided in the adjusting spindle, in which a sealing bead of the bellows rests.
  • At least one lip is formed on the sealing bead, which bears against the flat bottom of the annular groove, while minimizing the frictional resistance.
  • FIG. 1 is a half of a disc brake shown, which has formed as a sliding caliper caliper 1, which includes a brake disc 3 in its upper peripheral region.
  • the disc brake can be operated pneumatically or by electric motor.
  • brake pads 4 are arranged, of which an action-side is shown here, which can be pressed against the brake disc 3 in the case of operation.
  • the brake pad 4 consists of a support plate 6 and a brake pad 3 on the side facing the friction lining. 8
  • the partially formed as a threaded spindle spindle 10 is rotatably mounted in the brake caliper 1 and rotatable about an adjusting device, not shown.
  • the brake caliper 1 is largely closed on its side facing the brake disc 3 by a closure cap 7 which is pierced in the exit region of the adjusting spindle 10 for the brake pad 4.
  • a bellows 9 frictionally connected with the closure lid 7 is provided, which on the other side rests on the adjusting spindle 10 in a relatively rotatable manner.
  • the connection of the bellows 9 is shown with the adjusting spindle as a detail. It can be seen that the adjusting spindle 10 in the unthreaded region of its lateral surface has a circumferential annular groove 12, in which a sealing bead 11 of the bellows 9, which consists throughout of the same material as the bellows 9, rests.
  • the approximately rectangular in cross-section formed sealing bead 11 is dimensioned so that an axial relative movement of the bellows to the adjusting spindle 10 is largely prevented.
  • the sealing bead 11 has a circumferential, lip-shaped elevation 13, which rests against the bottom of the annular groove 12. This ensures that only slight frictional resistance during rotation of the adjusting spindle 10 with respect to the bellows 9 are overcome, so that a problem-free relative rotation between the two components is ensured.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Sealing Devices (AREA)

Abstract

The disc brake comprises a brake caliper (1) in which two pressed pads (4) are arranged to function against a brake disc (3). An adjusting spindle (10) is pressed against pad by application device. An outer area of disc brake is sealed by a sealing cap (7) connected with bellows (9), such that the bellows are rotated with respect to adjusting spindle.

Description

Die Erfindung betrifft eine Scheibenbremse, insbesondere für ein Nutzfahrzeug, nach dem Oberbegriff des Anspruchs 1.The invention relates to a disc brake, in particular for a commercial vehicle, according to the preamble of claim 1.

Um die in einem Aufnahmeraum des Bremssattels angeordneten funktionsrelevanten Bauteile, wie eine Zuspanneinrichtung, vor Korrosion durch Witterungseinflüsse zu schützen, ist dieser Aufnahmeraum weitgehend verschlossen und zwar auf der bei einer Schiebesattelbremse dem zuspannseitigen Bremsbelag zugeordneten Seite mittels eines Verschlussdeckels.In order to protect the functionally relevant components arranged in a receiving space of the caliper, such as an application device, from corrosion caused by weathering, this receiving space is largely closed, specifically on the side associated with a brake caliper brake brake application means of a closure cover.

Die Stellspindeln, die durch Betätigung der Zuspanneinrichtung gegen den Bremsbelag drückbar sind, sind durch den Verschlussdeckel geführt und hier jeweils durch einen Faltenbalg abgedichtet.The adjusting spindles, which can be pressed against the brake lining by actuation of the application device, are guided through the closure cover and in each case sealed by a bellows.

Als Bestandteil einer Nachstelleinrichtung, mit der ein verschleißbedingtes Lüftspiel ausgleichbar ist, sind die Stellspindeln als Gewinderohre ausgebildet und zum Lüftspielausgleich verdrehbar.As part of an adjusting device, with a wear-related clearance is compensated, the adjusting spindles are designed as threaded pipes and rotatable for Lüftspielausgleich.

Zur Bremskraftübertragung auf den Bremsbelag ist an jede Stellspindel stirnseitig ein Druckstück angeschlossen, gegenüber dem die Stellspindel verdrehbar ist.For braking force transmission to the brake pad a pressure piece is connected to each adjusting spindle front side, against which the adjusting spindle is rotatable.

Da der Faltenbalg, der sowohl am Verschlussdeckel wie auch am Druckstück reibschlüssig gehalten ist, auf Grund der Relativbewegung der Stellspindel zum Verschlussdeckel aus einem elastischen, d.h. deformierbaren Material besteht, ist im Verbindungsbereich sowohl mit dem Verschlussdeckel wie auch mit dem Druckstück in den anliegenden Endbereichen eine stabile, üblicherweise metallische Einlage eingearbeitet, bevorzugt durch Umspritzen, wenn der Faltenbalg insgesamt aus Kunststoff hergestellt ist.Since the bellows, which is frictionally held both on the closure lid and on the pressure piece, due to the relative movement of the adjusting spindle to the closure lid of an elastic, i. deformable material is incorporated in the connecting region both with the closure lid as well as with the pressure piece in the adjacent end regions a stable, usually metallic insert, preferably by encapsulation, when the bellows is made entirely of plastic.

Wenngleich der Faltenbalg druckstückseitig durch Verprägen fixiert ist, besteht die Gefahr, dass die reibschlüssige Verbindung in diesem Bereich durch die Relativbewegung der Stellspindel so weit gelöst wird, dass der Faltenbalg aus dem Verbindungsbereich mit dem Druckstück herauswandert, so dass eine dauerhaft angestrebte Dichtwirkung nicht gewährleistet ist.Although the bellows pressure piece side is fixed by Verprägen, there is a risk that the frictional connection is solved in this area by the relative movement of the adjusting spindle so far that the bellows out migrates out of the connection area with the pressure piece, so that a permanently desired sealing effect is not guaranteed.

Neben dem rein funktionalen Nachteil sind auch Nachteile bezüglich der Herstellung zu beklagen. Hierzu zählt insbesondere das Einbringen der metallischen Einlage sowie das Verprägen des Faltenbalges im Anlagebereich mit dem Druckstück.In addition to the purely functional disadvantage and disadvantages in terms of production are complained. This includes in particular the introduction of the metallic insert and the embossing of the bellows in the contact area with the pressure piece.

Da Scheibenbremsen in großen Stückzahlen hergestellt werden, kommt diesem Umstand naturgemäß eine besondere Bedeutung zu.Since disc brakes are produced in large quantities, this circumstance naturally assumes a special significance.

Der Erfindung liegt die Aufgabe zugrunde, eine Scheibenbremse der gattungsgemäßen Art so weiterzuentwickeln, dass ihre Betriebssicherheit verbessert, die Standzeit erhöht und die Fertigungs- bzw. Montagekosten reduziert werden.The invention has for its object to further develop a disc brake of the generic type so that their reliability improves, increases the life and the manufacturing or assembly costs are reduced.

Diese Aufgabe wird durch eine Scheibenbremse mit den Merkmalen des Anspruchs 1 gelöst.This object is achieved by a disc brake with the features of claim 1.

Durch diese konstruktive Ausbildung werden eine ganze Reihe von Vorteilen gegenüber dem Stand der Technik erzielt.This structural design a whole series of advantages over the prior art are achieved.

So ist zunächst zu erwähnen, dass ein Herausgleiten des Faltenbalges im Anlagebereich mit der Stellspindel ausgeschlossen ist, selbst wenn der Faltenbalg hier relativ zur Stellspindel axial wandert. Naturgemäß führt dies zu einer Verbesserung der Betriebssicherheit, da damit Fehlfunktionen quasi ausgeschlossen sind.So it should first be mentioned that sliding out of the bellows is excluded in the contact area with the adjusting spindle, even if the bellows here moves axially relative to the adjusting spindle. Naturally, this leads to an improvement of the operational safety, since thus malfunctions are virtually eliminated.

Überdies ist der Aufnahmeraum über die gesamte Betriebszeit der Scheibenbremse abgedichtet, so dass weder Schmutz noch Feuchtigkeit in den Aufnahmeraum dringen können, was die darin befindlichen Funktionsteile in Mitleidenschaft ziehen würde. Damit wird durch die Erfindung auch eine Erhöhung der Standzeit erreicht. Die verbesserte Funktions- bzw. Betriebssicherheit führt letztendlich zu einer Betriebskostenoptimierung, zumindest aber zu einer Betriebskostenreduzierung.Moreover, the receiving space is sealed over the entire operating time of the disc brake, so that neither dirt nor moisture can penetrate into the receiving space, which would affect the functional parts therein. Thus, an increase in the service life is achieved by the invention. The improved functional or operational reliability ultimately leads to an optimization of operating costs, or at least to a reduction in operating costs.

Darüber hinaus ergeben sich durch die Erfindung verminderte Fertigungskosten, da auf die Einbettung eines Verstärkungsringes im Anlagebereich mit der Stellspindel verzichtet werden kann. Die dem elastischen Material, aus dem der Faltenbalg besteht, innewohnenden Rückstellkräfte reichen aus, um eine dichte Anlage an der Stellspindel zu bewirken. Allerdings sind diese Rückstellkräfte durch eine entsprechende Materialwahl bzw. Dimensionierung so ausgelegt, dass eine Relativverdrehung der Stellspindel zum Faltenbalg möglich ist, ohne umfängliche Verformung des Faltenbalges im Sinne einer Verdrillung.In addition, resulting from the invention reduced manufacturing costs, since it can be dispensed with the embedding of a reinforcing ring in the contact area with the adjusting spindle. The restoring forces inherent in the elastic material of which the bellows are made suffice to provide a tight seal To cause contact with the adjusting spindle. However, these restoring forces are designed by an appropriate choice of material or dimensioning so that a relative rotation of the adjusting spindle to the bellows is possible without circumferential deformation of the bellows in the sense of a twist.

Eine Weiterentwicklung der Erfindung sieht vor, dass der Faltenbalg in axialer Richtung formschlüssig an der Stellspindel gehalten ist, wozu nach einem weiteren Gedanken der Erfindung in der Stellspindel eine mantelseitig umlaufende Ringnut vorgesehen ist, in der ein Dichtwulst des Faltenbalges einliegt.A further development of the invention provides that the bellows is held in a form-fitting manner on the adjusting spindle in the axial direction, for which, according to a further aspect of the invention, a shell-side circumferential annular groove is provided in the adjusting spindle, in which a sealing bead of the bellows rests.

Hierdurch wird gewährleistet, dass der Faltenbalg bei einer Axialbewegung der Stellspindel zuverlässig gehalten wird, d.h., eine axiale Relativbewegung zur Stellspindel ist ausgeschlossen und damit auch ein möglicher Abrieb des Faltenbalg-Materials im Dauerbetrieb.This ensures that the bellows is reliably held during an axial movement of the adjusting spindle, that is, an axial relative movement to the adjusting spindle is excluded and thus also a possible abrasion of the bellows material in continuous operation.

Da zumindest im Bereich des Dichtwulstes auf eine metallische Einlage verzichtet werden kann, gestaltet sich die Herstellung des Faltenbalges gegenüber einem solchen nach dem Stand der Technik wesentlich kostengünstiger. Lediglich als zusätzliche Maßnahme ist das Einstechen der Ringnut in die Stellspindel erforderlich, was jedoch im Verhältnis nur sehr geringe Kosten verursacht.Since a metallic insert can be dispensed with, at least in the region of the sealing bead, the manufacture of the bellows is considerably less expensive than in the case of the prior art. Only as an additional measure, the piercing of the annular groove is required in the adjusting spindle, but this causes relatively little cost.

Um die wirksamen Reibkräfte beim Verdrehen der Stellspindel gegen den Faltenbalg gering zu halten, ist an den Dichtwulst zumindest eine Lippe angeformt, die am planen Grund der Ringnut anliegt, unter Minimierung des Reibwiderstandes.In order to keep the effective frictional forces during rotation of the adjusting spindle against the bellows low, at least one lip is formed on the sealing bead, which bears against the flat bottom of the annular groove, while minimizing the frictional resistance.

Weitere vorteilhafte Ausbildungen der Erfindung sind in den Unteransprüchen gekennzeichnet.Further advantageous embodiments of the invention are characterized in the subclaims.

Ein Ausführungsbeispiel der Erfindung wird nachfolgend anhand der beigefügten Zeichnungen beschrieben.An embodiment of the invention will be described below with reference to the accompanying drawings.

Es zeigen:

Figur 1
einen Teilausschnitt einer Scheibenbremse in einer geschnitten Draufsicht
Figur 2
eine Einzelheit der Scheibenbremse in einer geschnittenen perspektivischen Ansicht.
Show it:
FIG. 1
a partial section of a disc brake in a cut plan view
FIG. 2
a detail of the disc brake in a sectional perspective view.

In der Figur 1 ist eine Hälfte einer Scheibenbremse dargestellt, die einen als Schiebesattel ausgebildeten Bremssattel 1 aufweist, der eine Bremsscheibe 3 in ihrem oberen Umfangsbereich umfasst. Dabei kann die Scheibenbremse pneumatisch oder elektromotorisch betätigbar sein.In the FIG. 1 is a half of a disc brake shown, which has formed as a sliding caliper caliper 1, which includes a brake disc 3 in its upper peripheral region. In this case, the disc brake can be operated pneumatically or by electric motor.

Zu beiden Seiten der Bremsscheibe 3 sind Bremsbeläge 4 angeordnet, von denen hier ein aktionsseitiger dargestellt ist, der im Funktionsfall gegen die Bremsscheibe 3 pressbar ist.On both sides of the brake disc 3 brake pads 4 are arranged, of which an action-side is shown here, which can be pressed against the brake disc 3 in the case of operation.

Der Bremsbelag 4 besteht aus einer Trägerplatte 6 und einem auf deren der Bremsscheibe 3 zugewandten Seite befestigten Reibbelag 8.The brake pad 4 consists of a support plate 6 and a brake pad 3 on the side facing the friction lining. 8

Über eine im Bremssattel 1 angeordnete mit einem Drehhebel betätigbare Zuspanneinrichtung 2 wird bei einer Bremsung eine Stellspindel 10 mit einem stirnseitig verdrehbar angeschlossenen Druckstück 5 gegen den Bremsbelag 4 gedrückt. Anstelle des an der Stellspindel 10 befestigten Druckstücks 5 kann dies auch fest mit der Trägerplatte 6 verbunden sein.About an arranged in the brake caliper 1 with a rotary lever operable application device 2 is pressed with a braking an adjusting spindle 10 with a front side rotatably connected pressure member 5 against the brake pad 4. Instead of the attached to the adjusting spindle 10 pressure piece 5, this can also be firmly connected to the support plate 6.

Zur Einstellung eines Lüftspiels zwischen dem Reibbelag 8 und der Bremsscheibe 3, unter Berücksichtigung des Verschleißes des Reibbelages 8, ist die bereichsweise als Gewindespindel ausgebildete Stellspindel 10 drehbar im Bremssattel 1 gelagert und über eine nicht dargestellt Nachstelleinrichtung verdrehbar.To set a clearance between the friction lining 8 and the brake disc 3, taking into account the wear of the friction lining 8, the partially formed as a threaded spindle spindle 10 is rotatably mounted in the brake caliper 1 and rotatable about an adjusting device, not shown.

Der Bremssattel 1 ist auf seiner der Bremsscheibe 3 zugewandten Seite weitgehend durch einen Verschlussdeckel 7 verschlossen, der im Austrittsbereich der Stellspindel 10 zum Bremsbelag 4 durchbrochen ist. Zur Abdichtung des Austrittsbereichs ist ein mit dem Verschlussdeckel 7 reibschlüssig verbundener Faltenbalg 9 vorgesehen, der andersseitig jedoch relativ verdrehbar an der Stellspindel 10 anliegt.The brake caliper 1 is largely closed on its side facing the brake disc 3 by a closure cap 7 which is pierced in the exit region of the adjusting spindle 10 for the brake pad 4. To seal the outlet region, a bellows 9 frictionally connected with the closure lid 7 is provided, which on the other side rests on the adjusting spindle 10 in a relatively rotatable manner.

In der Figur 2 ist die Verbindung des Faltenbalges 9 mit der Stellspindel als Einzelheit dargestellt. Es ist zu erkennen, dass die Stellspindel 10 im gewindefreien Bereich ihrer Mantelfläche eine umlaufende Ringnut 12 aufweist, in der ein Dichtwulst 11 des Faltenbalges 9, der durchgängig aus dem gleichen Material wie der Faltenbalg 9 im Übrigen besteht, einliegt.In the FIG. 2 the connection of the bellows 9 is shown with the adjusting spindle as a detail. It can be seen that the adjusting spindle 10 in the unthreaded region of its lateral surface has a circumferential annular groove 12, in which a sealing bead 11 of the bellows 9, which consists throughout of the same material as the bellows 9, rests.

Dabei ist der im Querschnitt etwa quaderförmig ausgebildete Dichtwulst 11 so bemessen, dass eine axiale Relativbewegung des Faltenbalges zur Stellspindel 10 weitgehend verhindert ist.Here, the approximately rectangular in cross-section formed sealing bead 11 is dimensioned so that an axial relative movement of the bellows to the adjusting spindle 10 is largely prevented.

Der Dichtwulst 11 weist eine umfängliche, lippenförmige Erhebung 13 auf, die am Grund der Ringnut 12 anliegt. Hierdurch ist gewährleistet, dass lediglich geringe Reibwiderstände beim Verdrehen der Stellspindel 10 gegenüber dem Faltenbalg 9 zu überwinden sind, sodass eine problemlose Relativverdrehung zwischen beiden Bauteilen gewährleistet ist.The sealing bead 11 has a circumferential, lip-shaped elevation 13, which rests against the bottom of the annular groove 12. This ensures that only slight frictional resistance during rotation of the adjusting spindle 10 with respect to the bellows 9 are overcome, so that a problem-free relative rotation between the two components is ensured.

BezugszeichenlisteLIST OF REFERENCE NUMBERS

11
Bremssattelcaliper
22
Zuspanneinrichtungapplication device
33
Bremsscheibebrake disc
44
Bremsbelagbrake lining
55
DruckstückPressure piece
66
Trägerplattesupport plate
77
Verschlussdeckelcap
88th
Reibbelagfriction lining
99
Faltenbalgbellow
1010
Stellspindeladjusting spindle
1111
Dichtwulstsealing bead
1212
Ringnutring groove
1313
lippenförmige Erhebunglip-shaped elevation

Claims (7)

Scheibenbremse, mit einem Bremssattel (1), in dem zwei in Funktion gegen eine Bremsscheibe (3) pressbare Bremsbeläge (4) angeordnet sind, von denen ein aktionsseitiger über mindestens eine Stellspindel (10) mittels einer Zuspanneinrichtung betätigbar ist, wobei die Stellspindel (10) durch einen einen Aufnahmeraum (2) des Bremssattels (1) zur Bremsscheibe (3) hin verschließenden Verschlussdeckel (7) geführt ist, an dem zur Abdichtung ein andererseits an der Stellspindel (10) befestigter Faltenbalg (9) angeschlossen ist, dadurch gekennzeichnet, dass der Faltenbalg (9) dicht, jedoch relativ verdrehbar an der Stellspindel (10) anliegt.Disc brake, with a brake caliper (1), in which two in a function against a brake disc (3) pressable brake pads (4) are arranged, of which an action side via at least one adjusting spindle (10) is actuated by means of a Zuspanneinrichtung, wherein the adjusting spindle (10 ) is guided through a sealing cover (7) closing a receiving space (2) of the brake caliper (1) to the brake disc (3), to which a bellows (9) attached to the adjusting spindle (10) for sealing is connected, characterized that the bellows (9) tight, but relatively rotatably applied to the adjusting spindle (10). Scheibenbremse nach Anspruch 1, dadurch gekennzeichnet, dass der Faltenbalg (9) in axialer Richtung formschlüssig an der Stellspindel (10) gehalten ist.Disc brake according to claim 1, characterized in that the bellows (9) in the axial direction is positively held on the adjusting spindle (10). Scheibenbremse nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Stellspindel (10) mantelseitig eine umlaufende Ringnut (12) aufweist, in der ein Dichtwulst (11) des Faltenbalges (9) einliegt.Disc brake according to claim 1 or 2, characterized in that the adjusting spindle (10) on the shell side has a circumferential annular groove (12), in which a sealing bead (11) of the bellows (9) rests. Scheibenbremse nach einen der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Dichtwulst (11) aus dem gleichen elastischen Material besteht, wie der Faltenbalg (9) im Übrigen.Disc brake according to one of the preceding claims, characterized in that the sealing bead (11) consists of the same elastic material as the bellows (9) otherwise. Scheibenbremse nach einen der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Dichtwulst (11) mindestens eine umlaufende, lippenförmige Erhebung (13) aufweist, die am Grund der Ringnut (12) anliegt.Disc brake according to one of the preceding claims, characterized in that the sealing bead (11) has at least one circumferential, lip-shaped elevation (13), which bears against the bottom of the annular groove (12). Scheibenbremse nach einen der vorhergehenden Ansprüche, bei der die Stellspindel (10) bereichsweise ein Außengewinde aufweist, dadurch gekennzeichnet, dass die Ringnut (12) außerhalb des Gewindebereichs angeordnet ist.Disc brake according to one of the preceding claims, in which the adjusting spindle (10) has an external thread in regions, characterized in that the annular groove (12) is arranged outside the threaded region. Scheibenbremse nach einen der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Dichtwulst (11) im Querschnitt etwa quaderförmig ausgebildet ist.Disc brake according to one of the preceding claims, characterized in that the sealing bead (11) is approximately cuboid in cross section.
EP12166738.0A 2011-05-05 2012-05-04 Disc brake, in particular for a commercial vehicle Active EP2520820B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE201110100539 DE102011100539A1 (en) 2011-05-05 2011-05-05 Disc brake, in particular for a commercial vehicle

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EP2520820A1 true EP2520820A1 (en) 2012-11-07
EP2520820B1 EP2520820B1 (en) 2016-07-13

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EP12166738.0A Active EP2520820B1 (en) 2011-05-05 2012-05-04 Disc brake, in particular for a commercial vehicle

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GB2536207A (en) * 2015-03-03 2016-09-14 Alcon Components Ltd A brake caliper seal and a method of manufacturing a brake caliper seal
EP3184389A1 (en) * 2015-12-22 2017-06-28 Haldex Brake Products AB Disc brake caliper seal and method for manufacturing the same
CN109563895A (en) * 2016-06-16 2019-04-02 克诺尔商用车制动***有限公司 Disk brake for commercial vehicle

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DE102021126766A1 (en) 2021-10-15 2023-04-20 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Clamping device for a disc brake for a commercial vehicle
DE102022125922A1 (en) 2022-10-07 2024-04-18 Knorr-Bremse Systeme für Nutzfahrzeuge GmbH Brake piston for a disc brake of a commercial vehicle

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EP0648952A1 (en) * 1993-10-13 1995-04-19 KNORR-BREMSE SYSTEME FÜR NUTZFAHRZEUGE GmbH Air operated disc brake
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WO1993022579A1 (en) * 1992-05-05 1993-11-11 Lucas Industries Public Limited Company Actuator with automatic readjustment for disk brakes, in particular for lorries and buses
EP0648952A1 (en) * 1993-10-13 1995-04-19 KNORR-BREMSE SYSTEME FÜR NUTZFAHRZEUGE GmbH Air operated disc brake
WO2009074222A2 (en) * 2007-12-12 2009-06-18 Wabco Radbremsen Gmbh Pneumatically and/or electromechanically actuable commercial vehicle disc brake

Cited By (5)

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Publication number Priority date Publication date Assignee Title
GB2536207A (en) * 2015-03-03 2016-09-14 Alcon Components Ltd A brake caliper seal and a method of manufacturing a brake caliper seal
GB2536207B (en) * 2015-03-03 2020-12-30 Alcon Components Ltd A brake caliper seal and a method of manufacturing a brake caliper seal
EP3184389A1 (en) * 2015-12-22 2017-06-28 Haldex Brake Products AB Disc brake caliper seal and method for manufacturing the same
WO2017109152A1 (en) * 2015-12-22 2017-06-29 Haldex Brake Products Ab Disc brake and method for manufacturing the same
CN109563895A (en) * 2016-06-16 2019-04-02 克诺尔商用车制动***有限公司 Disk brake for commercial vehicle

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